Fire-door



(No Model.) W. 8v W. H. ROSE.

l PIRE DOOR.

No. 358,789. l Patented Mar. l, 1887.

FIG. 2.

Unire @rares '0 rif/ZZ whom, t may concern:

Be it known that we, WATSON ROSE and 4WILLIAM H. RosE,both of the city and county of Philadelphia, and State of Pennsylvania, have invented an Improvement in Fire-Doors, of which the following is a specification.

Our invention has reference to fire-doors for buildings; and it consists in certain improvements, all of which are fully set forth in the following specification and shown in the accompanying drawings, which form part there of.

Heretofore great difficulty has been experienced in hanging the heavy doors required for this purpose. Short channel iron sections were bolted to the brick-work or masonry; but the bolts were required to come so close together that the brick-work was insufficient to sustain the operation of the weighty door, and

` the bolts pulled through.

Hanging and sliding doors are well known in the art, as may be seen by an examination of the following Letters Patent, viz: No. 318,125, of 1885; No. 269,508, of 1882; No. 289,961, of 1888, and No. 321,518, of 1885. These constructions comprehend the support of the sliding door from a suitable rail, either of metal or wood; butin no case, as far as we are aware, has the specilic construction herein set out been employed, the same being especial-ly adapted to redoors for brick and stone buildings.

The object of our invention is to provide a construction capable ol' supporting the heaviest doors in use and overcome all of the present or existing objections.

In the drawings, Figure 1 is a front elevation of a fire-door embodying :our invention, and Fig. 2 is a cross-Section of same on line x w.

A is the wall of the building, and may be made of brick-work or masonry.

B is the opening or doorway. The botto m of this doorway is provided with an iron floorplate, C, extending slightly into the room and meeting the floor N, as at c, and is provided with a door guidegroove, D, arranged in the plane of the door K, the lower edge of which slides in said groove.

Secured to the wall above the doorway is the guide-rail E, from which thedoor K is hung by hangers or wheels M. The guidetrice,

` VATSON ROSE AND VILLIAM H. ROSE', OF PHILADELPHIA, PENNSYLVANIA.

FIREBDOR.,

SPECIFICATION orniinsy Dart of Letters Patent No. 358,789, dated March l, 1887.

Application filed July 13, 1886. Serial No. 207,875. (No model.) I

rail in length is preferably equal to twice the width oi" the door, so as to sustain it when open or closed, and is' formed of two pieces, owing to the diliculty of casting ten-feet lengths and maintaining the patterns against warping and formation of curved castings.

I is the guide-rail proper, upon which the door is hung, and is of small width. This rail is connected by base part H with the deep plate G, which prevents warping of the rail and insures the door running uniformly at the same level, avoiding all binding in the lower guideway. By making the rear or sustaining plate, G, of great depth, its upper part will extend above the guide-rail and allow of the long bolts L being inserted after the door-rail has been placed in position upon the wall, and will prevent cutting into the wall. This construction, owing to the fact that it prevents warping in the patterns, and consequently' in the castings, enables long or fivc-feet lengths to be made with facility, and does not require the bolts to come close together. This spreading of the bolts gives a more solid hold upon the brick-work or masonry, and consequently makes the work more lasting and durable,and reduces the work of construction and setting, and hence the cost.

IV ith the old form of rails the bolts lrequired were brought so close together that often two bolts were sustained by the same brick, thus making the weakening apparent at a glance, and this weakness tended, by the constant movement of the heavy doors, to undermine the strength of the wall above the doorway or in its weakest part. Our construction entirely overcomes all of these objections.

Having now described our invention, what we claim as new,andfdesirc to secure by Letters Patent, is

1. In a fire-door for buildings, the combination of the wall with its doorway, the L-.rail E, from which the door is hung, formed with the upwardly-extending rail-edge I, of small depth, the horizontal base part H, andthe upL wardly-extending supportingplate G, ofgreat depth and made continuous throughout its length, long bolts considerably separated and extending through the plate G in a horizontal lplane considerably above the upper edge of the rail-edge I and secured upon the opposite IOO side of the wall, and a sliding door hung upon said rail-edge I, substantially as and for the purpose specified.

2. In a re-door for buildings, the combination of the wall With its doorway, the Lrail E, from which the door is hung, formed with the upwardly-extending rail-edge I, of small depth, the horizontal base part H, andthe upwardly-extending supporting-plate G, of great depth and made continuous throughout its length, long bolts considerably separated' and extending through the plate G in a horizontal plane considerably above the upper edge of the rail-edge I and secured upon the opposite side of the Wall, a sliding door hung upon said rail-edge I, and the floor-plate O, of metal, arranged in the doorway and having the groove D, for receiving the lower and made continuous throughout its length,

above the upper part of rail-edge I, substantially as and for the purpose specied.

set our hands.

WATSON ROSE. VILLIAM H. ROSE.

Witnesses:

R. M. HUNTER,

edge of the door,

RIoHD. S. CHILD, J r.

tending supporting-plate G, of' great depth and having bolt-holes in the plate G in a line In testimony of which invention We hereunto 

